We look at the division of 98539110 by 280 
The aim is to understand the frequency of 280 in 98539110.

Moving on to step 1:
280 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 280

Let's proceed to step 2:
98 divided by 280 is 0 with a remainder of 98.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 98 leaves us with 98.
Bring next digit (5) of the dividend behind the 98 and repeat the process: 985 / 280

Let's proceed to step 3:
985 divided by 280 is 3 with a remainder of 145.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 145 after subtracting 840 from 985.
Take the next digit (3) from the dividend and append it to 145, then repeat: 1453 / 280

Step 4:
280 goes into 1453 5 times with a remainder of 53.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtract 1400 from 1453 to get 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 280

Let's proceed to step 5:
280 can be fit into 539 1 times, resulting in a remainder of 259.
Use 1 as the next digit of our solution. 
Result so far: 351.0
Subtracting 280 from 539 leaves us with 259.
Grab the next digit (1) from the dividend, add it to 259, then carry on: 2591 / 280

On to step 6:
2591 divided by 280 is 9 with a remainder of 71.
Use 9 as the next digit of our solution. 
Result so far: 3519.0
Deduct 2520 from 2591 and we're left with 71.
Append the next digit (1) from the dividend to 71 and continue with: 711 / 280

Moving on to step 7:
280 can be fit into 711 2 times, resulting in a remainder of 151.
The number 2 becomes the next digit in our result. 
Result so far: 35192.0
If we subtract 560 from 711, we get 151.
Append the next digit (0) from the dividend to 151 and continue with: 1510 / 280

Let's proceed to step 8:
280 goes into 1510 5 times with a remainder of 110.
The next digit of our result is 5. 
Result so far: 351925.0
If we take 1400 away from 1510, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 9:
280 can be fit into 1100 3 times, resulting in a remainder of 260.
The number 3 becomes the next digit in our result. 
Result so far: 351925.3
Subtract 840 from 1100 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 10:
2600 divided by 280 is 9 with a remainder of 80.
Write down 9 as next digit of the result. 
Result so far: 351925.39
Deduct 2520 from 2600 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 11:
800 divided by 280 is 2 with a remainder of 240.
Write down 2 as next digit of the result. 
Result so far: 351925.392
Subtract 560 from 800 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 12:
When dividing 2400 by 280, we get 8 with a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 351925.3928
Deduct 2240 from 2400 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 13:
1600 divided by 280 is 5 with a remainder of 200.
The next digit of our result is 5. 
Result so far: 351925.39285
The remainder is 200 after subtracting 1400 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 14:
280 can be fit into 2000 7 times, resulting in a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 351925.392857
Deduct 1960 from 2000 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 15:
400 divided by 280 is 1 with a remainder of 120.
The next digit of our result is 1. 
Result so far: 351925.3928571
The remainder is 120 after subtracting 280 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
280 can be fit into 1200 4 times, resulting in a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 351925.39285714
If we subtract 1120 from 1200, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 351925.39285714 with a remainder of 8e-08.